====== Vendors ======
===== Mail Order =====
==== Electronics ====
=== Big Suppliers with Large, Heavy Catalogs ===
  * Digikey (Thief River Falls, MN) - http://www.digikey.com
  * Element 14 - http://us.element-14.com/
    * Newark / Farnell / Element 14 are all part of the same company (Premier Farnell).  The many faces of Farnell are confusing.  I don't think Element 14 actually has a printed catalog.  What is Element 14's online store - another interface to Newark or Farnell's catalog?  Something else?  I'm not sure.   --- //jeff 01/15/2011 12:12//
  * Mouser - http://www.mouser.com
    * Mouser is located in Mansfield, TX (near Ft. Worth), so UPS ground shipping to Austin is usually overnight.  (USPS, however, still takes 2-3 days)  --- //jeff 01/15/2011 12:04//
  * Newark Electronics - http://www.newark.com

=== Smaller Suppliers ===
  * Jameco (San Mateo, CA) - http://www.jameco.com
    * Smaller operation with limited selection, but they tend to carry the most useful stuff, their catalog is easy to browse, and they have very good prices on some items.
    * They have a will-call counter in Belmont, CA (20 minutes from San Francisco).

=== Small Companies / Boutique Shops ===
These are smaller companies that generally cater to the hobbyist market, although some of them are getting quite large (eg. Sparkfun).
  * Adafruit (New York, NY) - http://adafruit.com
  * All Electronics (Van Nuys, CA) - http://www.allelectronics.com
  * Alltronics (San Martin, CA) - http://www.alltronics.com
  * Dan's Small Parts and Kits (Missoula, MT) - http://www.danssmallpartsandkits.net
  * Electronic Goldmine (Scottsdale, AZ) - http://www.goldmine-elec.com
  * Electronix Express (Avenel, NJ) - http://elexp.com
  * Evil Mad Science (Sunnyvale, CA) - http://evilmadscience.com
  * NKC Electronics - http://nkcelectronics.com
  * Sparkfun Electronics (Boulder, CO) - http://www.sparkfun.com
  * Unicorn Electronics (Aliquippa, PA) - http://www.unicornelectronics.com/
    * Obsolete and hard to find components.  
  * Seeeds Studio depot - http://www.seeedstudio.com/depot/
  * Cute Digi - (China) http://www.cutedigi.com

=== Other ===
  * Aliexpress - (wholesale suppliers from all over the world) http://www.aliexpress.com/wholesale?SearchText=arduino&CatId=0
  * Add more here...

==== Hardware ====
  * Grainger - http://www.grainger.com
  * McMaster-Carr - http://mcmaster.com
===== Walk-in =====
  * See the list of [[resources:surplus|surplus shops]].
  * [[http://www.jameco.com|Jameco]] has a will-call counter, convenient for those living in the San Francisco Bay Area.
  * You-Do-It Electronics, Needham, MA - http://www.youdoitelectronics.com
  * Electronics Plus, Littleton, MA - http://www.electronicsplus.com/
  * JK Electronics Wesminister, CA http://jkelectronics.com/
  * Marvac Costa Mesa, CA 
  * Creatron Inc., Toronto, ON http://www.creatroninc.com/
    * Carries a lot of SparkFun, Pololu and Adafruit stuff, can be a bit pricey.
  * Sayal Electronics, Toronto and surrounding area, ON http://www.sayal.com/
    * Website is next to useless, poor selection of new semiconductors, BUT it's about the only option for a lot of people in the area.